Press Release

HOUSTON--(BUSINESS WIRE)--June 12, 2000--PricewaterhouseCoopers, the world's largest professional services organization, and Landmark Graphics Corporation, a wholly owned business unit of Halliburton Company (NYSE:HAL), have agreed to jointly market and implement capital allocation and performance management software application processes for the oil and gas industry. The agreement brings together two industry leaders with deep technical and business knowledge, a common focus on T2B(TM) technical-to-business integration and track records of proven performance.

The PricewaterhouseCoopers and Landmark Graphics relationship will provide the oil and gas industry with implementation services relating to automated tracking of strategy execution, and the ability to better manage shareholder value and related information.

"With the global landscape of oil and gas companies in continuous change, we are extremely excited about the opportunities our work with Landmark Graphics will bring to the industry," said Michael Olszewski, consulting managing partner of PricewaterhouseCoopers North American Petroleum Practice. "As a result of this marketing agreement, oil and gas companies will have new technology from which to select appropriate measures corresponding to strategy, the creation of long-term value and obtaining consistent and reliable information to help optimize performance analysis, planning and capital allocation."

"We are very pleased that PricewaterhouseCoopers is joining with Landmark to accelerate the deployment of advanced systems designed to create tremendous new productivity gains for the energy industry," said John Gibson, president and CEO of Landmark Graphics. "Our goal is to improve enterprise portfolio management through the integration of technical and business processes."

"Investors' expectations of return on investment are forcing energy companies to become more sophisticated managers of their portfolio of business opportunities," said Jonathan Lewis, vice president, Information and Business Management Systems, Landmark Graphics. "Landmark's proven EPM(TM) Enterprise Portfolio Management solutions, combined with PricewaterhouseCoopers track record in process change and implementation, represent a unique and valuable offering to the energy industry."

About PricewaterhouseCoopers

PricewaterhouseCoopers (www.pwcglobal.com) is the world's leading professional services organization. The firm's Global Energy & Mining group (www.pwcglobal.com/energy) energy is the service leader to the international energy community, serving more than 3,000 oil and gas companies world-wide through a network of dedicated energy specialists. Drawing on the knowledge and skills of 150,000 people in 150 countries, PricewaterhouseCoopers helps clients solve complex business problems and measurably enhance their ability to build value, manage risk and improve performance in an Internet-enabled world.

PricewaterhouseCoopers refers to the member firms of the worldwide PricewaterhouseCoopers organization.

About Landmark Graphics

Landmark is the leading supplier of integrated E&P technical and economic software and services to support decision making about finding, drilling and producing oil and gas. Knowledge-based E&P companies now are turning to Landmark for T2B technical-to-business process integration for improving returns on their investments. Visit the Landmark Web site at www.lgc.com.

Founded in 1919, Halliburton Company is a diversified energy services, engineering, energy equipment, construction and maintenance company. In 1999, Halliburton's consolidated revenues were $14.9 billion and it conducted business with a workforce of approximately 100,000 in 120 countries. The company's World Wide Web site can be accessed at www.halliburton.com.

CONTACT: PricewaterhouseCoopers, Houston

             Frieda de la Morena, 713/356-4844
             frieda.de.la.morena@us.pwcglobal.com
             or
             Landmark Graphics Corp., Houston
             Rod Hotz, 281/368-5766
             rhotz@lgc.com